|An adaptive inspection sampling program for determining coating failure of Nimitz class aircraft carrier tanks and voids. - Thornell, Mark Edwin.|
Thesis advisor, Lyn R. Whitaker
Keywords: AIRCRAFT CARRIERS; FUEL TANKS
|Auxiliary Fuel Tank|
https://titanfueltanks.com Titan Fuel Tanks engineers and manufacturers ultra-durable, extra-capacity aftermarket fuel tanks made from advanced, military-grade, cross-linked polyethylene.
Keywords: fuel tank; fuel tanks; auxiliary fuel tank
|Simulation methods for Poisson processes in nonstationary systems - Lewis, Peter A. W.Shedler, Gerald S.|
Title from cover
Keywords: HYDRAULIC RAMS.AIRPLANES--FUEL TANKS--DESIGN AND CONSTRUCTION
|Preliminary investigation of a stick shaker as a lift margin indicator - Trant, J. P., Jr|
No Abstract Available
Keywords: AERODYNAMIC CONFIGURATIONS; DATA CORRELATION; FLUTTER; DIVERGENCE; FUEL TANKS; WINGS
|Translating horizontal tail Patent - Spearman, M. L|
Development and characteristics of translating horizontal tail assembly for supersonic aircraft
Keywords: FUEL TANKS; LIQUID SLOSHING; MICROGRAVITY; RIGID STRUCTURES; INCOMPRESSIBLE FLOW; INTERFACIAL TENSION; KINEMATICS; MATHEMATICAL MODELS; SYMMETRY
|Drag Measurements at Transonic Speeds of NACA 65-009 Airfoils Mounted on a Freely Falling Body to Determine the Effects of Sweepback and Aspect Ratio - Mathews, Charles W.|
Drag measurements at transonic speeds of NACA 65-009 rectangular airfoils and airfoils swept-back 45 degrees mounted on a freely falling body to determine the effects of sweepback and aspect ratio are reported. Tests were made to compare the drag of rectangular and swept-back airfoils at a higher aspect ratio than had been used in a similar comparison reported previously.
Keywords: FUEL TANKS; FUSELAGES; FIGHTER AIRCRAFT; BUFFETING; MACH NUMBER; SUPPORTS; WINGS; STREAMLINING
|Ranging system Patent - Anderson, T. O|
Spacecraft ranging system
Keywords: CRYOGENIC ROCKET PROPELLANTS; HOT-WIRE FLOWMETERS; LEVEL (HORIZONTAL); LIQUID SLOSHING; FUEL TANKS; INDICATING INSTRUMENTS; LIQUID HYDROGEN
|Atmospheric turbulence measurements in marine fog during CEWCOM-76 - Fairall, C. W.;Davidson, Kenneth L.;Houlihan, Thomas M.;Schacher, G. E. (Gordon Everett)|
Title from cover
Keywords: HYDRAULIC RAMS; AIRPLANES--FUEL TANKS--DESIGN AND CONSTRUCTION; AIRPLANES, MILITARY--COMBAT SURVIVABILITY
|Reliability plan - Gerardi, J.|
No Abstract Available
Keywords: APOLLO SPACECRAFT; FUEL CELLS; SPACECRAFT POWER SUPPLIES; CREWS; ELECTRIC BATTERIES; FUEL TANKS; HYDROGEN; SAFETY
|Factors involved in the variability of monthly major aircraft accident rates - Poock, G. K. (Gary K.)|
Title from cover
Keywords: HYDRAULIC RAMS--COMPUTER PROGRAMS; AIRPLANES--FUEL TANKS--DESIGN AND CONSTRUCTION--COMPUTER PROGRAMS
|Radio Shack CoCo Manual: Zaxxon (1983)(Tandy)[a][26-3062]|
Radio Shack CoCo Manual: Zaxxon (1983)(Tandy)[a][26-3062]
Keywords: spacecraft; radio; destroy; joystick; zaxxon; enemy; shack; encounter; space; fuel; radio shack; fuel tanks; enemy planes
|Modeling Visual, Vestibular and Oculomotor Interactions in Self-Motion Estimation - Perrone, Joh|
A computational model of human self-motion perception has been developed in collaboration with Dr. Leland S. Stone at NASA Ames Research Center. The research included in the grant proposal sought to extend the utility of this model so that it could be used for explaining and predicting human performance in a greater variety of aerospace applications. This extension has been achieved along with physiological validation of the basic operation of the model.
Keywords: NONDESTRUCTIVE TESTS; FUEL TANKS; PRESSURE VESSELS; SHEAROGRAPHY; THERMOGRAPHY; FAULT DETECTION; COATINGS; BONDED JOINTS; LAMINATES; ROCKET OXIDIZERS
|THE AIRPLANE AS AN OBJECT OF CONTROL: BLOCK DIAGRAMS OF THE EQUATIONS OF PERTURBED AIRPLANE MOTION - VEDROV, V. S.|
THIS WORK CONSIDERS THE PRESENTATION OF EQUATIONS FOR THE PERTURBED MOTION OF AN AIRPLANE IN THE FORM OF SINGLE-LOOP BLOCK DIAGRAMS. A BRIEF ANALYSIS IS GIVEN OF THE CHARACTERISTICS OF THE INDIVIDUAL LINKS AND OF THEIR CHANGE WITH CHANGING FLIGHT SPEED AND ALTITUDE. A DERIVATION OF TRANSFER FUNCTIONS FOR CONTROL WITH ELEVATOR, RUDDER, AND AILERON IS PRESENTED, AS WELL AS SIMPLIFIED EXPRESSIONS FOR THE TRANSFER FUNCTIONS, DEPENDING ON THE FREQUENCY RANGE, WHICH CORRESPOND TO BREAK- ING UP THE PER...
Keywords: DIMETHYLHYDRAZINES; DECOMPOSITION; THERMAL STABILITY; IGNITION; SPONTANEOUS COMBUSTION; REENTRY; IGNITION TEMPERATURE; FUEL TANKS; EXOTHERMIC REACTIONS; AERODYNAMIC HEATING
|Assessment of Selected CERES Electronic Component Survivability under Simulated Overvoltage Conditions - Chapman, John J.|
In August, 1998 a Clouds and the Earth's Radiant Energy System (CERES) instrument telemetry housekeeping parameter generated a yellow warning message that indicated an on-board 15V Data Acquisition Assembly (DAA) power converter deregulation anomaly. An exhaustive investigation was undertaken to understand this anomaly and the long-term consequences which have severely reduced CERES operations on the Tropical Rainfall Measuring Mission (TRMM) spacecraft...
Keywords: ELECTROMAGNETIC COUPLING; FUEL TANKS; RADIO FREQUENCIES; AIRCRAFT FUEL SYSTEMS; ELECTRONIC EQUIPMENT; SPARKS; AIRCRAFT FUELS; AIRCRAFT SAFETY
|Dilution Jet Mixing Phase I Program - Srinivasan, R.|
The main objective of the NASA Dilution Jet Mixing Phase I Program was to quantify by means of parametric tests the effect of the following on the mixing of a row of jets with a confined cross-flow. 1) Jet to mainstream density ratio; 2) Flow area convergence as encountered in transition sections; and 3) Non-uniform mainstream profile upstream of dilution orifices. The general conclusions derived from Phase I work are: 1) Jet spreading rate in transverse direction is increased with increasing J,...
Keywords: AEROSPACE TECHNOLOGY TRANSFER; BOATS; PROTECTIVE COATINGS; SHIP HULLS; FLAME RETARDANTS; FIRE PREVENTION; DESTRUCTIVE TESTS; FUEL TANKS
|Radio Shack CoCo Manual: Zaxxon (1983)(Datasoft)|
Radio Shack CoCo Manual: Zaxxon (1983)(Datasoft)
Keywords: spacecraft; radio; destroy; joystick; zaxxon; enemy; shack; encounter; space; fuel; radio shack; fuel tanks; enemy planes
|Radio Shack CoCo Manual: Zaxxon (1983)(Tandy)[a2][26-3062]|
Radio Shack CoCo Manual: Zaxxon (1983)(Tandy)[a2][26-3062]
Keywords: spacecraft; encounter; space; zaxxon; radio; aoftwara; joystick; destroy; robot; fortress; radio shack; space fortress; enemy planes; fuel tanks
|Space Generic Open Avionics Architecture (SGOAA) reference model technical guide - Wray, Richard B.|
This report presents a full description of the Space Generic Open Avionics Architecture (SGOAA). The SGOAA consists of a generic system architecture for the entities in spacecraft avionics, a generic processing architecture, and a six class model of interfaces in a hardware/software system. The purpose of the SGOAA is to provide an umbrella set of requirements for applying the generic architecture interface model to the design of specific avionics hardware/software systems...
Keywords: AUXILIARY POWER SOURCES; LIQUID ROCKET PROPELLANTS; SPACECRAFT PROPULSION; TEST FACILITIES; DEGRADATION; ETHYLENE; HYDRAZINES; PROPELLANT TANKS; PROPYLENE; RUBBER; CORROSION; FUEL TANKS
|Radio Shack CoCo Manual: Zaxxon (1983)(Tandy)[26-3062]|
Radio Shack CoCo Manual: Zaxxon (1983)(Tandy)[26-3062]
Keywords: spacecraft; shack; zaxxon; radio; destroy; joystick; space; encounter; software; fortress; radio shack; space fortress; enemy planes; fuel tanks
|Atari 5200 Manual: Zaxxon (1984)(Sega)|
Atari 5200 Manual: Zaxxon (1984)(Sega)
Keywords: destroy; robot; space; planes; zaxxon; enemy; lor; joystick; fortress; player game; zaxxon robot; outer space; fuel tanks; enemy planes
|Further Development of an Optimal Design Approach Applied to Axial Magnetic Bearings - Bloodgood, V. Dale, Jr.|
Classical design methods involved in magnetic bearings and magnetic suspension systems have always had their limitations. Because of this, the overall effectiveness of a design has always relied heavily on the skill and experience of the individual designer. This paper combines two approaches that have been developed to aid the accuracy and efficiency of magnetostatic design. The first approach integrates classical magnetic circuit theory with modern optimization theory to increase design effici...
Keywords: BOEING 737 AIRCRAFT; DROP TESTS; FUSELAGES; STRUCTURAL FAILURE; CRASHES; SIMULATION; AIRCRAFT STRUCTURES; FINITE ELEMENT METHOD; FUEL TANKS
|Bond problems caused by thermal excursion - Villella, F|
The failure mode caused by thermal deformation and thermal deformation effects on bond integrity are discussed. Thermocompression (TC) wedge bonding, ultrasonic bonding, and thermocompression ball (nailhead) bonding in small-signal transistors are considered. Repeated switching of these devices between high and low power at a rate that allows thermal expansion and contraction in the interconnecting wire causes the wire to flex at the point of reduced cross-sectional area until breakage finally o...
Keywords: FUEL TANKS; METHANE; SUPERSONIC AIRCRAFT; THERMAL INSULATION; CRYOGENIC FLUID STORAGE; FATIGUE TESTS; HIGH TEMPERATURE TESTS; THERMAL CONDUCTIVITY; THERMAL EXPANSION
|Corrugated and Composite Nozzle-Inlets for Thrust and Noise Benefits - Gilinsky, M.|
The following research results are based on development of an approach previously proposed and investigated in for optimum nozzle design to obtain maximum thrust. The design was denoted a Telescope nozzle. A Telescope nozzle contains one or several internal designs, which are inserted at certain locations into a divergent conical or planar main nozzle near its exit. Such a design provides additional thrust augmentation over 20% by comparison with the optimum single nozzle of equivalent lateral a...
Keywords: POLYMER MATRIX COMPOSITES; SPACE TRANSPORTATION; FUEL TANKS; COMPOSITE STRUCTURES; CRYOGENIC TEMPERATURE; TEMPERATURE EFFECTS; WEIGHT REDUCTION; SANDWICH STRUCTURES; LOADS (FORCES); MECHANICAL PROPERTIES
|Extrema principles of entrophy production and energy dissipation in fluid mechanics - Horne, W. Clifton|
A survey is presented of several extrema principles of energy dissipation as applied to problems in fluid mechanics. An exact equation is derived for the dissipation function of a homogeneous, isotropic, Newtonian fluid, with terms associated with irreversible compression or expansion, wave radiation, and the square of the vorticity. By using entropy extrema principles, simple flows such as the incompressible channel flow and the cylindrical vortex are identified as minimal dissipative distribut...
Keywords: AIRCRAFT STRUCTURES; METAL SURFACES; STIFFNESS; TENSILE PROPERTIES; TRANSPORT AIRCRAFT; FUEL TANKS; GRAPHITE-EPOXY COMPOSITES; IMPACT TOLERANCES; LIGHTNING SUPPRESSION; WING PANELS; COMPOSITE STRUCTURES; COMPRESSION LOADS; LEAKAGE
|A theoretical study of nonlinear fuel sloshing in an elastic circular tank - Chu, W. H|
Nonlinear fuel sloshing in elastic cylindrical tank - steady state response and stability boundary determinations
Keywords: BOUNDARIES; STEADY STATE; BOUNDARY LAYER STABILITY; FUEL TANK; LIQUID SLOSHING; NONLINEAR SYSTEM; STEADY STATE; BOUNDARY LAYER STABILITY; CYLINDRICAL TANKS; EIGENVALUES; FUEL TANKS; LIQUID SLOSHING; NONLINEAR SYSTEMS; NONLINEARITY; STABILITY
|Influence of Back-Up Bearings and Support Structure Dynamics on the Behavior of Rotors With Active Supports - Flowers, George T|
This report presents a synopsis of the research work. Specific accomplishments are itemized below: (1) Experimental facilities have been developed. This includes a magnetic bearing test rig and an auxiliary bearing test rig. In addition, components have been designed, constructed, and tested for use with a rotordynamics test rig located at NASA Lewis Research Center. (2) A study of the rotordynamics of an auxiliary bearing supported T-501 engine model was performed...
Keywords: FLUID FILLED SHELLS; MATHEMATICAL MODELS; THIN WALLS; LOADS (FORCES); SPACE SHUTTLES; BUCKLING; EXTERNAL TANKS; FINITE ELEMENT METHOD; FUEL TANKS; NONLINEAR SYSTEMS; COLLAPSE; LIQUID OXYGEN
|Propagation effects on satellite systems at frequencies below 10 GHz: A handbook for satellite systems design - Flock, Warren L|
Frequencies below 10 GHz continue to be used for a large portion of satellite service, and new applications, including mobile satellite service and the global positioning system, use frequencies below 10 GHz. As frequency decreases below 10 GHz, attenuation due to precipitation and gases decreases and ionospheric effects increase. Thus the ionosphere, which can be largely neglected above 10 GHz, receives major attention...
Keywords: FUEL TANKS; GROUND SUPPORT EQUIPMENT; SAFETY; TEMPERATURE CONTROL; ORBITAL MANEUVERING VEHICLES; ORBITAL SERVICING; PROPELLANT TRANSFER; REFUELING; SPACE STATIONS; USER REQUIREMENTS; AVIONICS; COST EFFECTIVENESS
|Optimizing Sensor and Actuator Arrays for ASAC Noise Control - Palumbo, Dan|
This paper summarizes the development of an approach to optimizing the locations for arrays of sensors and actuators in active noise control systems. A type of directed combinatorial search, called Tabu Search, is used to select an optimal configuration from a much larger set of candidate locations. The benefit of using an optimized set is demonstrated. The importance of limiting actuator forces to realistic levels when evaluating the cost function is discussed...
Keywords: X-33 REUSABLE LAUNCH VEHICLE; INSPECTION; THERMOGRAPHY; INFRARED IMAGERY; LIQUID HYDROGEN; PROPELLANT TANKS; STORAGE TANKS; FUEL TANKS; MANUFACTURING; GRAPHITE-EPOXY COMPOSITES; REINFORCING MATERIALS; SEALS (STOPPERS)
|New Design and Improvement of Planetary Gear Trains - Litvin, Faydor L.|
The development of new types of planetary and planetary face-gear drives is proposed. The new designs are based on regulating backlash between the gears and modifying the tooth surfaces to improve the design. The goal of this work is to obtain a nearly uniform distribution of load between the planet gears. In addition, a new type of planetary face-gear drive was developed in this project.
Keywords: FUEL TANKS; PASSENGERS; TRANSMITTERS; ELECTROMAGNETIC FIELDS; FAULT DETECTION; PORTABLE EQUIPMENT; IGNITION; AIRCRAFT FUEL SYSTEMS; ELECTROMAGNETISM; AIR TRANSPORTATION; RADIO FREQUENCIES; ELECTROMAGNETIC COUPLING; BOEING 747 AIRCRAFT; REVERBERATION CHAMBERS
|Aero-astrodynamics research review - Murphree, W. D|
Aero-astrodynamics research review, and report bibliography, July 1967 to August 1968
Keywords: CRYOGENIC ROCKET PROPELLANTS; SCALE MODELS; FLOW MEASUREMENT; LIQUID HYDROGEN; SLUSH; ARTIFICIAL SATELLITES; FUEL TANKS; HYDROGEN FUELS; MULTISTAGE ROCKET VEHICLES; PERFORMANCE TESTS
|Advanced System Design Requirements for Large and Small Fixed-wing Aerial Application Systems for Agriculture - Hinely, J. T., Jr.|
Several candidate aircraft configurations were defined over the range of 1000 to 10,000 pounds payload and evaluated over a broad spectrum of agricultural missions. From these studies, baseline design points were selected at 3200 pounds payload for the small aircraft and 7500 pounds for the large aircraft. The small baseline aircraft utilizes a single turboprop powerplant while the large aircraft utilizes two turboprop powerplants...
Keywords: HIGH ALTITUDE; SUPERSONIC AIRCRAFT; TECHNOLOGY ASSESSMENT; TURBOJET ENGINES; HIGH SPEED; HYDROGEN; HYDROGEN FUELS; RESEARCH; B-57 AIRCRAFT; ENGINE DESIGN; FUEL TANKS; HISTORIES
|Buckling tests of three 4.6 meter diameter aluminum honeycomb sandwich conical shells loaded under external pressure - Anderson, J. K.|
Three aluminum honeycomb sandwich conical shells with a 120 apex angle and a 4.6-m (15.0-ft) base diameter were loaded to failure by a uniform external pressure. The cones differed from one another only in the thickness of their respective face sheets. Test specimen details, test procedure, and test results are discussed. Both buckling and prebuckling data are compared with appropriate theoretical predictions, and good agreement was obtained between test and theory...
Keywords: CRYOGENIC FLUID STORAGE; STIFFNESS; MULTILAYER INSULATION; SPACE SHUTTLE ORBITERS; VACUUM EFFECTS; FUEL TANKS; LEAKAGE; LITHIUM HYDRIDES; ORBIT MANEUVERING ENGINE (SPACE SHUTTLE); SCALE MODELS
|Minimize system cost by choosing optimal subsystem reliability and redundancy - Suich, Ronald C.|
The basic question which we address in this paper is how to choose among competing subsystems. This paper utilizes both reliabilities and costs to find the subsystems with the lowest overall expected cost. The paper begins by reviewing some of the concepts of expected value. We then address the problem of choosing among several competing subsystems. These concepts are then applied to k-out-of-n: G subsystems...
Keywords: AUXILIARY POWER SOURCES; DEGRADATION; ELONGATION; ETHYLENE; PROPYLENE; RUBBER; TITANIUM; COLUMBIA (ORBITER); COMPATIBILITY; CORROSION TESTS; DIAPHRAGMS (MECHANICS); FUEL TANKS; HYDRAZINES; SERVICE LIFE; TENSILE PROPERTIES
|AIRCRAFT-FUEL-TANK DESIGN FOR LIQUID HYDROGEN - Reynolds, T. W|
Design of aircraft fuel tanks for liquid hydrogen
Keywords: AIRCRAFT DESIGN; INSULATOR; LIQUID HYDROGEN; AIRCRAFT FUEL SYSTEMS; AIRCRAFT FUELS; FUEL TANKS; INSULATORS; LEAKAGE; LIQUID HYDROGEN; AIRCRAFT FUEL SYSTEM; FUEL TANK
|Guidance, navigation, and control subsystem equipment selection algorithm using expert system methods - Allen, Cheryl L|
Enhanced engineering tools can be obtained through the integration of expert system methodologies and existing design software. The application of these methodologies to the spacecraft design and cost model (SDCM) software provides an improved technique for the selection of hardware for unmanned spacecraft subsystem design. The knowledge engineering system (KES) expert system development tool was used to implement a smarter equipment section algorithm than that which is currently achievable thro...
Keywords: FUEL TANKS; PIPELINES; SHROUDS; STEADY STATE; STRUTS; HEAT TRANSFER; LEAKAGE; LIQUID HYDROGEN; MULTILAYER INSULATION; TEMPERATURE EFFECTS; CRYOGENICS; FLUID FLOW; GLASS FIBERS
|Evaluation of the effects of solar radiation on glass - Firestone, R. F.|
The degradation of glass used on space structures due to electromagnetic and particulate radiation in a space environment was evaluated. The space environment was defined and a simulated space exposure apparatus was constructed. Four optical materials were exposed to simulated solar and particulate radiation in a space environment. Sapphire and fused silica experienced little change in transmittance, while optical crown glass and ultra low expansion glass darkened appreciably...
Keywords: FUEL TANKS; IN-FLIGHT MONITORING; TEMPERATURE MEASUREMENT; AIRCRAFT MODELS; BOEING 707 AIRCRAFT; BOEING 747 AIRCRAFT; DC 10 AIRCRAFT; DC 8 AIRCRAFT; STATISTICAL ANALYSIS
|Thermal conductivity of filled RTV compounds - Mauk, C. E|
Sealant materials with high thermal conductivity, and electrically nonconductive were studied for applications. Alumina and other thermally conductive fillers were examined for room temperature vulcanizing (RTV) use. The guarded hot plate apparatus, and its operation are described, and results of the thermal conductivity tests are discussed. It was found that magnesium oxide is significantly better than aluminum oxide as a filler enhancing the thermal conductivity of RTV...
Keywords: AERODYNAMIC CHARACTERISTICS; LAUNCH VEHICLE CONFIGURATIONS; SPACE SHUTTLE ORBITERS; WIND TUNNEL STABILITY TESTS; BODY-WING CONFIGURATIONS; BOOSTER ROCKET ENGINES; FUEL TANKS; SCALE MODELS; TRANSONIC WIND TUNNELS
|Glass-Fiber-Reinforced Metallic Tanks for Cryogenic Service - Morris, E. E|
Advantages of and design requirements for a load-bearing metal shell with an overwrapped glass-filament shell for high-pressure-fluid storage at 75 to -423 deg F were investigated analytically and experimentally. Proper design permits utilization of the maximum load-bearing capabilities of both shells and makes possible tanks of significantly lighter weight than the best cylindrical and spherical homogeneous metal pressure vessels...
Keywords: CRYOGENIC FLUID STORAGE; LOADS (FORCES); MATERIALS TESTS; PRESSURE VESSELS; REINFORCING FIBERS; STORAGE TANKS; GLASS FIBERS; METAL SHELLS; REINFORCED SHELLS; CREEP PROPERTIES; CYLINDRICAL SHELLS; FUEL TANKS; HIGH PRESSURE; LOADING
|ROSAT and radio observations of stellar flares on AD Leo - Dulk, George A|
Observations on the flare star AD Leo were carried out by ROSAT on 8-9 May 1991. Contemporaneous observations were made with a large number of optical and radio telescopes around the world, and with Ginga, the Hubble Space Telescope (HST), and the International Ultraviolet Explorer (IUE). The x-ray light curves show that one flare with about 15 counts per sec was observed at 1548 UT on 8 May 1991, and another may have been observed on 0800 on 9 May 1991...
Keywords: EXPULSION BLADDERS; MICROGRAVITY; VIDEO EQUIPMENT; FLUID FLOW; FLUID MANAGEMENT; FUEL TANKS; REFUELING; SPACE SHUTTLE ORBITERS; FLOWMETERS; FREON; GET AWAY SPECIALS (STS)
|Quarterly reliability status report, 1 August 1964 - Smith, D. L|
No Abstract Available
Keywords: LUNAR MODULE; WEIGHT (MASS); SPACECRAFT DESIGN; SPACECRAFT POWER SUPPLIES; APOLLO PROJECT; ENVIRONMENTAL CONTROL; FUEL CELLS; FUEL TANKS; HYDROGEN; SILVER ZINC BATTERIES
|Proceedings of the Second Pilot Climate Data System Workshop - NON|
The proceedings of the workshop held on January 29 and 30, 1986 are discussed. Data management, satellite radiance data, clouds, ultraviolet flux variations in the upper atmosphere, rainfall during El Nino events, and the use of optical disks are among the topics covered.
Keywords: AIRCRAFT FUEL SYSTEMS; ATTENUATION; LINEAR SYSTEMS; MASS; AMERICIUM ISOTOPES; AMOUNT; COEFFICIENTS; FEASIBILITY ANALYSIS; FUEL GAGES; FUEL TANKS; MEASURING INSTRUMENTS; SELF ADAPTIVE CONTROL SYSTEMS
|Precambrian evolution and the rock record - Awramik, S|
The Precambrian time which refers to geological time prior to the first appearance of animals with mineralized hard parts was investigated. Best estimates for this event are around 570 million years ago. Because the rock record begins some 3,800 million years ago the Precambrian encompasses about 84% of geologic time. The fossil record for this immense span of time is dominated by prokaryotes and the sedimentary structures produced by them...
Keywords: AIRCRAFT STRUCTURES; MECHANICAL PROPERTIES; STRUCTURAL ANALYSIS; TRANSPORT AIRCRAFT; DAMAGE; FUEL TANKS; GRAPHITE-EPOXY COMPOSITES; WING TANKS; YIELD POINT; BOLTED JOINTS; COMPOSITE MATERIALS; FIBER COMPOSITES
|Handheld Game Manual: Scramble (Tomy)|
Keywords: enemy; illustration; fuel; score; level; barriers; destroy; points; oil; rocket; fuel tanks; avoid barriers; fuel level; space base; skill level; oil tank; oil tanks; enemy missiles; enemy space; vertical column
Keywords: click; button; colony; screen; tanks; clicking; tank; colonists; fuel; map; exit button; quick start; left mouse; main screen; mouse button; fuel tanks; life support; map screen; left button; ship yard
|TM 3-1040-204-14 Flamethrower, Portable, M2A1-7|
Keywords: valve; pressure; tank; fuel; maintenance; ignition; assembly; coupling; remove; lever; support maintenance; maintenance personnel; pressure tank; tank valve; needle valve; pressure regulator; direct support; valve assembly; safety lever; fuel tanks
|Computation of noise radiation from turbofans: A parametric study - Nallasamy, M|
This report presents the results of a parametric study of the turbofan far-field noise radiation using a finite element technique. Several turbofan noise radiation characteristics of both the inlet and the aft ducts have been examined through the finite element solutions. The predicted far-field principal lobe angle variations with duct Mach number and cut-off ratio compare very well with the available analytical results...
Keywords: AXISYMMETRIC FLOW; STATISTICAL ANALYSIS; CORRELATION; FUEL TANKS; LEAST SQUARES METHOD; MASS DISTRIBUTION; NONLINEAR EQUATIONS; NONLINEARITY; PERFORMANCE TESTS; PRESSURE MEASUREMENT; EXPULSION; FLUID FLOW; FUEL TANK PRESSURIZATION; GAS INJECTION; GAS PRESSURE; LIQUID HYDROGEN; MASS FLOW; PREDICTION ANALYSIS TECHNIQUES
|ibm :: 1620 :: general program library :: 10.3.020 1620 Crititcal Path Schedule Bar Graph Generator Program|
From the bitsavers.org collection, a scanned-in computer-related document.ibm :: 1620 :: general program library :: 10.3.020 1620 Crititcal Path Schedule Bar Graph Generator Program
Keywords: tfm; program; oac; install; del; dac; dummy; graph; wacd; const; oac oac; bar graph; latest finish; graph generator; generator program; sample problem; fuel tanks; install fuel; hydraulic lift; fuel pumps
|The probabilistic origin of Bell's inequality - Krenn, Guenthe|
The concept of local realism entails certain restrictions concerning the possible occurrence of correlated events. Although these restrictions are inherent in classical physics they have never been noticed until Bell showed in 1964 that general correlations in quantum mechanics can not be interpreted in a classical way. We demonstrate how a local realistic way of thinking about measurement results necessarily leads to limitations with regard to the possible appearance of correlated events...
Keywords: COMPUTATIONAL FLUID DYNAMICS; COMPUTATIONAL GRIDS; CONTINUITY EQUATION; EQUATIONS OF STATE; HEAT FLUX; MACH NUMBER; MOMENTUM THEORY; CRYOGENIC FLUIDS; DRAINAGE; FINITE DIFFERENCE THEORY; FUEL TANKS; HYPERSONIC AIRCRAFT; LIQUID-VAPOR INTERFACES; MATHEMATICAL MODELS; NAVIER-STOKES EQUATION
|The Structure and Dynamics of the Solar Corona - Mikic, Zora|
This report covers technical progress during the third year of the NASA Space Physics Theory contract ''The Structure and Dynamics of the Solar Corona,'' between NASA and Science Applications International Corporation, and covers the period June 16, 1998 to August 15, 1999. This is also the final report for this contract. Under this contract SAIC, the University of California, Irvine (UCI), and the Jet Propulsion Laboratory (JPL), have conducted research into theoretical modeling of active regio...
Keywords: REUSABLE LAUNCH VEHICLES; STORAGE TANKS; PROPELLANT TANKS; EXTERNAL TANKS; LIQUID OXYGEN; RECOVERABLE LAUNCH VEHICLES; X-33 REUSABLE LAUNCH VEHICLE; VENTURESTAR LAUNCH VEHICLE; AEROSPIKE ENGINES; LAUNCH VEHICLE CONFIGURATIONS; TANK GEOMETRY; SHAPES; FUEL TANKS
|Near-wall k-epsilon turbulence modeling - Mansour, N. N.|
The flow fields from a turbulent channel simulation are used to compute the budgets for the turbulent kinetic energy (k) and its dissipation rate (epsilon). Data from boundary layer simulations are used to analyze the dependence of the eddy-viscosity damping-function on the Reynolds number and the distance from the wall. The computed budgets are used to test existing near-wall turbulence models of the k-epsilon type...
Keywords: CENTAUR LAUNCH VEHICLE; FOAMS; FUEL TANKS; LIQUID HYDROGEN; LIQUID OXYGEN; POLYIMIDES; CRYOGENIC ROCKET PROPELLANTS; CRYOGENIC STORAGE; DESIGN ANALYSIS; SPACE SHUTTLE PAYLOADS; THERMAL PROTECTION; FAIL-SAFE SYSTEMS; FLIGHT TESTS; FLIGHT VEHICLES